摘要
讨论嵌套关系表达时态关系、嵌套元组演算表达时态元组演算的能力,提出一种用嵌套关系数据库(DB)实现时态数据库系统的方法.
In this paper,the author discusses the feasibilty of expressing temporal relations in nested relations and temporal tuple calculus in nested tuple calculus;and proposes a method for inplementing temporal DB system in nested relational DB.
出处
《华侨大学学报(自然科学版)》
CAS
1994年第2期234-238,共5页
Journal of Huaqiao University(Natural Science)
关键词
嵌套关系
数据库
时态数据库
nested relational DB,temporal DB,nested tuple calculus,temporal tuple calculus